Rheumatoid deformities at the metacarpophalangeal joints of the fingers.
D001172:Arthritis, Rheumatoid / Q000473:pathology*; D005384:Finger Joint / Q000473:pathology*; D006227:Hand Deformities, Acquired / Q000473:pathology*; D006801:Humans; D008663:Metacarpus / Q000473:pathology*